Fix rst syntax

doc/en/cache.rst

@@ -262,7 +262,7 @@ than speed.
 config.cache API
 ------------------
 
-The `config.cache`` object allows other plugins,
+The ``config.cache`` object allows other plugins,
 including ``conftest.py`` files,
 to safely and flexibly store and retrieve values across
 test runs because the ``config`` object is available

doc/en/parametrize.rst

@@ -142,7 +142,7 @@ Sometimes you may want to implement your own parametrization scheme
 or implement some dynamism for determining the parameters or scope
 of a fixture.   For this, you can use the ``pytest_generate_tests`` hook
 which is called when collecting a test function.  Through the passed in
-`metafunc` object you can inspect the requesting test context and, most
+``metafunc`` object you can inspect the requesting test context and, most
 importantly, you can call ``metafunc.parametrize()`` to cause
 parametrization.
 

doc/en/skipping.rst

@@ -31,7 +31,7 @@ Marking a test function to be skipped
 
 .. versionadded:: 2.9
 
-The simplest way to skip a test function is to mark it with the `skip` decorator
+The simplest way to skip a test function is to mark it with the ``skip`` decorator
 which may be passed an optional ``reason``:
 
 .. code-block:: python
@@ -45,7 +45,7 @@ which may be passed an optional ``reason``:
 
 .. versionadded:: 2.0, 2.4
 
-If you wish to skip something conditionally then you can use `skipif` instead.
+If you wish to skip something conditionally then you can use ``skipif`` instead.
 Here is an example of marking a test function to be skipped
 when run on a Python3.3 interpreter::
 

doc/en/writing_plugins.rst

@@ -109,7 +109,7 @@ If you want to write a plugin, there are many real-life examples
 you can copy from:
 
 * a custom collection example plugin: :ref:`yaml plugin`
-* around 20 doc:`builtin plugins` which provide pytest's own functionality
+* around 20 :ref:`builtin plugins` which provide pytest's own functionality
 * many `external plugins <http://plugincompat.herokuapp.com>`_ providing additional features
 
 All of these plugins implement the documented `well specified hooks`_